129615116 has 12 divisors (see below), whose sum is σ = 226941288. Its totient is φ = 64774752.

The previous prime is 129615113. The next prime is 129615119. The reversal of 129615116 is 611516921.

It is an interprime number because it is at equal distance from previous prime (129615113) and next prime (129615119).

It is not an unprimeable number, because it can be changed into a prime (129615113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135 + ... + 16241.

It is an arithmetic number, because the mean of its divisors is an integer number (18911774).

Almost surely, 2^129615116 is an apocalyptic number.

It is an amenable number.

129615116 is a deficient number, since it is larger than the sum of its proper divisors (97326172).

129615116 is a wasteful number, since it uses less digits than its factorization.

129615116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16408 (or 16406 counting only the distinct ones).

The product of its digits is 3240, while the sum is 32.

The square root of 129615116 is about 11384.8634598751. The cubic root of 129615116 is about 506.0792733053.

The spelling of 129615116 in words is "one hundred twenty-nine million, six hundred fifteen thousand, one hundred sixteen".